John Mark McLain, MD

Board Certified in General Surgery

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545 Creekside Crossing
Suite 222
New Braunfels, TX 78130
Phone: 830-310-3491

515 N. King Street
Suite 105
Seguin, TX 78155
Phone: 830-310-3491


  • Research Fellowship - Division of Trauma, Critical Care, and Nutrition: University of Tennessee School of Medicine, Knoxville, Tennessee
  • Residency - General Surgery: University of Tennessee School of Medicine, Knoxville, Tennessee
  • Doctorate of Medicine: Wright State University Boonshoft School of Medicine, Dayton, Ohio
  • Masters of Science - Anatomy: Wright State University, Dayton, Ohio
  • Bachelor of Science - Biology: Ouachita Baptist University, Arkadelphia, Arkansas

About The Provider

Dr. John McLain is a General Surgeon servicing New Braunfels, Texas and the surrounding areas. He has extensive training in bread and butter general surgery as well as minimally invasive techniques including laparoscopy and robotics. Dr. McLain has authored, co-authored and published multiple scientific papers in the realm of wound healing, inflammation, and tracheal stenosis based on surgical technique. He is a member of the American College of Surgeons and the Society of American Gastrointestinal and Endoscopic Surgeons.

Special Interests

  • Endocrine surgery
  • Robotics
  • Anti-Reflux surgery
  • Endoscopy-upper and lower
  • Oncologic surgery
  • Skin cancer surgery
  • Hernia repair
  • Gallbladder surgery
  • Colon and rectal surgery
  • Breast cancer surgery